| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.73 | 0.87 | -0.14 |
| Feb | 0.77 | 0.88 | -0.11 |
| Mar | 1.55 | 1.58 | -0.03 |
| Apr | 2.93 | 2.96 | -0.03 |
| May | 4.16 | 4.29 | -0.13 |
| Jun | 4.64 | 4.55 | 0.09 |
| Jul | 4.09 | 4.17 | -0.08 |
| Aug | 4.31 | 4.37 | -0.06 |
| Sep | 3.36 | 3.30 | 0.06 |
| Oct | 2.63 | 2.63 | 0.00 |
| Nov | 1.52 | 1.57 | -0.05 |
| Dec | 1.04 | 1.23 | -0.19 |
31.73 | 32.40 | -0.67 |